857134 has 4 divisors (see below), whose sum is σ = 1285704. Its totient is φ = 428566.

The previous prime is 857107. The next prime is 857137. The reversal of 857134 is 431758.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214282 + ... + 214285.

It is an arithmetic number, because the mean of its divisors is an integer number (321426).

2⁸⁵⁷¹³⁴ is an apocalyptic number.

857134 is a deficient number, since it is larger than the sum of its proper divisors (428570).

857134 is a wasteful number, since it uses less digits than its factorization.

857134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428569.

The product of its digits is 3360, while the sum is 28.

The square root of 857134 is about 925.8153163563. The cubic root of 857134 is about 94.9910979655.

The spelling of 857134 in words is "eight hundred fifty-seven thousand, one hundred thirty-four".